Updated runtime files.  Remove version checks for Vim older than 6.0.
diff --git a/runtime/syntax/lotos.vim b/runtime/syntax/lotos.vim
index 3cd83c4..e617bdb 100644
--- a/runtime/syntax/lotos.vim
+++ b/runtime/syntax/lotos.vim
@@ -7,11 +7,8 @@
 " I'm not sure I understand all of the syntax highlight language,
 " but this file seems to do the job for standard LOTOS.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -56,26 +53,18 @@
 syn sync lines=250
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_lotos_syntax_inits")
-  if version < 508
-    let did_lotos_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink lotosStatement		Statement
-  HiLink lotosProcess		Label
-  HiLink lotosOperator		Operator
-  HiLink lotosSort		Function
-  HiLink lotosType		Type
-  HiLink lotosComment		Comment
-  HiLink lotosDelimiter		String
+HiLink lotosStatement		Statement
+HiLink lotosProcess		Label
+HiLink lotosOperator		Operator
+HiLink lotosSort		Function
+HiLink lotosType		Type
+HiLink lotosComment		Comment
+HiLink lotosDelimiter		String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "lotos"